Coconut fruit is a

1. drupe

2. berry

3. nut

4. capsule

Root hairs develop from the region of

(1) maturation

(2) elongation

(3) root cap

(4) meristematic activity

In ginger vegetative propagation occurs through

(1) rhizome

(2) offsets

(3) bulbils

(4) runners

The term 'polyadelphous' is related to 

1. gynoecium

2. androecium

3. corolla

4. calyx

Free-central placentation is found in

(1) Dianthus

(2) Argemone

(3) Brassica

(4) Citrus

In Bougainvillea, thorns are the modifications of

(1) stipules

(2) adventitious root

(3) stem

(4) leaf

Plants, which produce characteristic pneumatophores and show vivipary belong to

(1) mesophytes

(2) halophytes

(3) psammophytes

(4) hydrophytes

Radial symmetry is found in the flowers of 

(1) Brassica

(2) Trifolium

(3) Pisum

(4) Cassia

How many plants among Indigofera, Sesbania, Salvia, Allium, Aloe, mustard, groundnut, raddish, gram and turnip have stamens with different lengths in their flowers?

(1) Three

(2) Four

(3) Five

(4) Six